A144424 Nonprimes of the form (p(n)-2*(n-1))/11, where p(n)=n-th prime.

1, 1, 9, 9, 21, 27, 33, 33, 49, 49, 51, 57, 75, 81, 81, 85, 87, 93, 141, 153, 155, 169, 183, 203, 203, 209, 217, 237, 247, 253, 255, 261, 265, 291, 297, 297, 305, 309, 319, 319, 329, 333, 339, 341, 345, 377, 411, 413, 423, 425, 445, 471, 513, 513, 517, 519, 529

Offset

1,3

Links

Table of n, a(n) for n=1..57.

Example

If n=10, then (p(10)-2*(10-1))/11=(29-18)/11=1=a(1).
If n=11, then (p(11)-2*(11-1))/11=(31-20)/11=1=a(2).
If n=41, then (p(41)-2*(41-1))/11=(179-80)/11=9=a(3).
If n=42, then (p(42)-2*(42-1))/11=(181-82)/11=9=a(4).
If n=75, then (p(75)-2*(75-1))/11=(379-148)/11=21=a(5).
If n=92, then (p(92)-2*(92-1))/11=(479-182)/11=27=a(6), etc.

Crossrefs

Cf. A000040, A141468.

Sequence in context: A214831 A197497 A053456 * A359038 A282269 A205380

Adjacent sequences: A144421 A144422 A144423 * A144425 A144426 A144427

Keyword

nonn

Author

Juri-Stepan Gerasimov, Oct 08 2008

Extensions

73 removed, 85, 87, 93 added and extended by R. J. Mathar, Nov 06 2008

Status

approved